sctp_bindx(3) — Linux manual page


SCTP_BINDX(3)           Linux Programmer's Manual          SCTP_BINDX(3)

NAME         top

       sctp_bindx - Add or remove bind addresses on a socket.

SYNOPSIS         top

       #include <sys/types.h>
       #include <sys/socket.h>
       #include <netinet/sctp.h>

       int sctp_bindx(int sd, struct sockaddr * addrs, int addrcnt,
                      int flags);

DESCRIPTION         top

       sctp_bindx adds or removes a set of bind addresses passed in the
       array addrs to/from the socket sd.  addrcnt is the number of
       addresses in the array and the flags paramater indicates if the
       addresses need to be added or removed.

       If sd is an IPv4 socket, the addresses passed must be IPv4
       addresses. If sd is an IPv6 socket, the addresses passed can be
       either IPv4 or IPv6 addresses.

       addrs is a pointer to an array of one or more socket addresses.
       Each address is contained in its appropriate structure(i.e.
       struct sockaddr_in or struct sockaddr_in6). The family of the
       address type must be used to distinguish the address length. The
       caller specifies the number of addresses in the array with

       The flags parameter can be either SCTP_BINDX_ADD_ADDR or
       SCTP_BINDX_REM_ADDR.  An application can use SCTP_BINDX_ADD_ADDR
       to associate additional addresses with an endpoint after calling
       bind(2).  SCTP_BINDX_REM_ADDR directs SCTP to remove the given
       addresses from the association.  A caller may not remove all
       addresses from an association. It will fail with EINVAL.

RETURN VALUE         top

       On success, 0 is returned. On failure, -1 is returned, and errno
       is set appropriately.

ERRORS         top

       EBADF  sd is not a valid descriptor.

              sd is a descriptor for a file, not a socket.

       EFAULT Error while copying in or out from the user address space.

       EINVAL Invalid port or address or trying to remove all addresses
              from an association.

       EACCES The address is protected, and the user is not the super-

SEE ALSO         top

       sctp(7) sctp_sendmsg(3), sctp_sendv(3), sctp_send(3),
       sctp_recvmsg(3), sctp_recvv(3), sctp_peeloff(3),
       sctp_getpaddrs(3), sctp_getladdrs(3), sctp_opt_info(3),

COLOPHON         top

       This page is part of the lksctp-tools (Linux kernel SCTP tools)
       project.  Information about the project can be found at [unknown
       -- if you know, please contact] If you have a
       bug report for this manual page, send it to
       This page was obtained from the project's upstream Git repository
       ⟨⟩ on 2023-12-22.  (At
       that time, the date of the most recent commit that was found in
       the repository was 2023-04-04.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to

Linux 2.6                      2005-10-25                  SCTP_BINDX(3)

Pages that refer to this page: sctp_connectx(3)sctp_getladdrs(3)sctp_getpaddrs(3)sctp_opt_info(3)sctp_peeloff(3)sctp_recvmsg(3)sctp_recvv(3)sctp_send(3)sctp_sendmsg(3)sctp_sendv(3)sctp(7)